How Gravity Makes Things Fall

July 24, 2014

This is really interesting …

That’s one small step for a man …

July 21, 2014

Forty five years ago today, on July 21, 1969, Neil Armstrong became the first human to step on the moon. He and “Buzz” Aldrin walked around for about three hours.

Happy anniversary fellas!

And this, now forty five year old clip, still blows my mind:

“That’s one small step for a man, one giant leap for mankind.”

Climate changing more rapidly than at any point on record

July 19, 2014

A new look at the “vital signs” of Earth’s climate reveals a stark picture of declining health. As global temperatures rise, so do sea level and the amount of heat trapped in the ocean’s upper layers. Meanwhile, mountain glaciers and Arctic sea ice are melting away beneath an atmosphere where concentrations of three key planet-warming greenhouse gases continue to rise.

Data shows that the climate is changing more rapidly now than it has at any time in the historical record!!! Learn more here.

As a whole, the world’s glaciers—such as Italy’s Careser Glacier, seen here in August 1933 (top) and August 2012 (bottom)—have lost ice for the last 23 years in a row.

As a whole, the world’s glaciers—such as Italy’s Careser Glacier, seen here in August 1933 (top) and August 2012 (bottom)—have lost ice for the last 23 years in a row.

Strange that Australia’s carbon tax, one of the world’s landmark attempts to stop climate change, is officially no more. More here.

Ten Reasons Not to Trust Your Memory

July 13, 2014

You might think you know your own mind, but your memory can play some confusing tricks on you.

Chimpanzee brain power is strongly heritable

July 11, 2014

If a chimpanzee appears unusually intelligent, it probably had bright parents. That’s the message from the first study to check if chimp brain power is heritable.

Chimpanzee

The discovery could help to tease apart the genes that affect chimp intelligence and to see whether those genes in humans also influence intelligence. It might also help to identify additional genetic factors that give humans the intellectual edge over their non-human-primate cousins.

The researchers estimate that, similar to humans, genetic differences account for about 54 per cent of the range seen in “general intelligence”. Learn more here or here.

Why You Are Still Alive – The Immune System Explained

July 10, 2014

Why are we alive when our bodies are constantly under attack from bacteria, viruses and more? As this video explains, it is thanks to our immune systems that we have an army of cells fighting for our cause.

Why is it Dark at Night?

June 20, 2014

Have you ever wondered why the sky is dark at night? Well wonder no more …

Exponential Technologies

June 19, 2014

This video illustrates the powerful implications of six key technologies: 3D printing, robotics, artificial intelligence, the “Internet of Things,” infinite computing and synthetic biology.

Dinosaurs were neither warm nor cold blooded

June 17, 2014

Depending on the source of an organism’s body warmth, it may be classified as either an ectotherm or an endotherm. An ectotherm is an animal that warms itself primarily by obtaining heat from the environment, perhaps by sunning itself. Ectothermic animals include most fish, amphibians, and reptiles as well as most invertebrates. An endotherm is an animal that produces most of its own heat and maintains a constant body temperature even when environmental temperatures fluctuate. All birds and mammals are endotherms.

Paleontologists have struggled for years to determine whether dinosaurs were cold-blooded like today’s reptiles or warm-blooded like most modern mammals and birds.

It turns out the answer is neither. Scientists have found evidence for “mesothermy” in dinosaurs. The “mesothermy” found in dinosaurs likely allowed them to move quickly, given that they would not need to constantly eat in order to maintain their body temperature (as do endotherms). As well, the dinosaur’s mesothermic metabolic rate would have decreased the vulnerability of these species to extreme fluctuations in external temperature, allowing them to exert some control of body temperature via internal mechanisms.

Dinosaur Mesotherm

Learn more here, here or here.

Video Of The Accident That Almost Killed Neil Armstrong

June 13, 2014

US Navy pilot, war veteran, aerospace engineer, astronaut and first man on the moon Neil Armstrong was also an incredible test pilot, with 900 flights in experimental aircraft including the dangerous Lunar Landing Testing Vehicle. On 6 May 1968, he almost died flying one. This is the video of the crash.

The controls on his Lunar Landing Research Vehicle started to go crazy at an altitude of 30m, and the vehicle started to bank dangerously. Armstrong ejected and landed safely, but, according to the post-accident investigation, he would have died had he ejected only half a second later. Learn more here.


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